openwrt/target/linux/ath79/patches-5.15/408-mtd-redboot_partition_scan.patch
David Bauer 9a0155bc4f ath79: add 5.15 support for generic subtarget
Add Kernel 5.15 patches + config. This is currently only available for
the generic subtarget, as it was exclusively tested with this target.

Tested-on: Siemens WS-AP3610, Enterasys WS-AP3705i

Signed-off-by: David Bauer <mail@david-bauer.net>
2022-03-30 17:28:39 +02:00

46 lines
1.1 KiB
Diff

--- a/drivers/mtd/parsers/redboot.c
+++ b/drivers/mtd/parsers/redboot.c
@@ -90,12 +90,18 @@ static int parse_redboot_partitions(stru
parse_redboot_of(master);
+ buf = vmalloc(master->erasesize);
+ if (!buf)
+ return -ENOMEM;
+
+ restart:
if (directory < 0) {
offset = master->size + directory * master->erasesize;
while (mtd_block_isbad(master, offset)) {
if (!offset) {
nogood:
pr_notice("Failed to find a non-bad block to check for RedBoot partition table\n");
+ vfree(buf);
return -EIO;
}
offset -= master->erasesize;
@@ -108,10 +113,6 @@ nogood:
goto nogood;
}
}
- buf = vmalloc(master->erasesize);
-
- if (!buf)
- return -ENOMEM;
pr_notice("Searching for RedBoot partition table in %s at offset 0x%lx\n",
master->name, offset);
@@ -183,6 +184,12 @@ nogood:
}
if (i == numslots) {
/* Didn't find it */
+ if (offset + master->erasesize < master->size) {
+ /* not at the end of the flash yet, maybe next block :) */
+ directory++;
+ goto restart;
+ }
+
pr_notice("No RedBoot partition table detected in %s\n",
master->name);
ret = 0;